790,140parcels

• with a zoning code789,854 (100%)
• with a normalised owner620,535 (78.5%)
• with a recorded sale price604,941 (76.6%)
• sale price from the Regrid roll604,082 (76.5%)
• sale price from the assessor roll859 (0.1%)

Source. Clark County Assessor roll, county GIS, and the licensed Regrid roll

Coverage. Ownership is normalised for about four in five parcels. Sale prices now cover roughly three in four, but almost all of that comes from the licensed Regrid roll rather than the assessor roll, which carries a usable price on well under one percent. The remaining quarter of parcels has no sale on record at all, and that is the ceiling on what land comps can find.

239districts

• jurisdictions encoded6

Source. Each jurisdiction's published ordinance, hand-encoded and cited to the section

Coverage. Clark County, county-wide — every parcel in the roll carries a district. Arizona and Utah next. Where a parcel's district cannot be verified the platform says so instead of guessing.

0sales

Source. Third-party land-sale feed

Coverage. Not loaded in production. Land comps instead run off recorded sale prices on nearby parcels, which covers most of the county and is what the comp panel actually reads. What a dedicated feed would add is the qualitative detail a tax roll does not carry: whether a sale was arm's length, and what the buyer intended to build. This is a coverage gap, not a valuation.

43,144records

• that are plans (rather than pointers)27,223 (63.1%)

Source. Clark County and municipal plan-record indexes Harvested through 2026-08-21.

Coverage. Indexed from the county's own record system; coverage follows theirs.

26,565cases

• that can be placed on the map6,604 (24.9%)

Source. Clark County Legistar and the county agenda-item layer

Coverage. Two different windows. Cases run from 2010; the location layer only covers 2017 onward, so older cases are real but cannot be drawn on a map. Disposition is published for most pre-2021 cases and for a minority after.

498segments published

• mined before the confidence gate1,442
• source documents held2,597

Source. Approved civil plan sheets, read and transcribed, each row citing its document

47,429easement grants

• recorded maps covered2,053
• with the grantee readable in the quoted text24,443 (51.5%)
• sheets read6,890
• roll-size sheets re-read as tight crops1,815 (26.3%)
• of those, carrying no grant language1,294 (71.3%)
• sheets that could not be read at any resolution9 (0.1%)

Source. Recorded final maps and parcel maps, each row quoting the grant language it was read from

Coverage. A plat records who holds an easement, never a pipe size, so this is evidence that a purveyor serves a subdivision rather than a map of mains. The limit is resolution: roll-size sheets are about 89 inches wide and are downscaled before they are read, so their legends can be illegible on a whole-sheet pass. Every such sheet was read a second time as tight crops of its legend and notes blocks at 78-117 pixels per inch; the ones that still carried no grant language are counted as read and bare, and only the sheets no pass could read are counted as unread, because a resolution limit is not an absence of evidence and neither is a legible page with nothing on it.

2,766projects

Source. Published agency capital improvement programmes

Coverage. Only agencies that publish a machine-readable programme.

3,192polygons

Source. FEMA National Flood Hazard Layer, panel number carried on every result

1,233wells

Source. State well-log records

Coverage. Reported location accuracy varies with the age of the log.

115,144centrelines

Source. County GIS

Coverage. Used for frontage measurement; unbuilt right of way may be absent.

130,805features

• NDWR basins and designation orders29
• NDWR points of diversion11,455
• USFWS desert tortoise critical habitat10
• USFWS wetlands (NWI)14,449
• USGS intermittent and ephemeral flowlines101,298
• USGS Quaternary fault traces323
• NDEP corrective-action sites1,771
• city limits, county islands and annexations1,470

Source. NDWR, USFWS, NDEP, USGS, Clark County and city GIS services, mirrored per dataset Harvested through 2026-09-01.

Coverage. Each overlay is a screen read against the parcel boundary, not a study, and a dataset at zero is one the loader has not run for; the brief says so rather than reading it as clear. NHD under-maps small desert washes, NWI is photo-interpreted, and NDEP lists releases, not every registered tank.

156reference line items

• awarded bid line items held2,220

Source. RS Means 2026 city-adjusted for Las Vegas, benchmarked against awarded DOT bid tabulations